John and Bill enter into a 1 year contract whereby John will pay Bill to perform landscaping services at John's house. Three months into the contract, John's mother becomes ill and is unable to maintain her yard. john, Bill, and John's mother agree that Bill will no longer perform landscaping services at John's house, but will fulfill the remaining 9 months of the contract at John's mother's home.john, Bill and John's mother agree that John's mother will pay Bill pursuant to the terms of the original contract and that John's obligations under the original contract will be extinguished. This arrangement describes A a settlement agreement B. a mutual agreement to rescind Canovation D. an accord and satisfaction